Yeah, their recoil spring was a joke. It was a full inch longer than the one in the gun.Just for shits and giggles I tried putting it in - yea that wasn't happening. If I can't trust one spring in the kit, I can't trust any. Time to go Browning!
Just did an extended field strip and clean. In general there is quite a bit of grit and dirt in the gun that needs to be shaken out. My extractor was completely seized with dirt and cosmolene and the mag catch wasn't too much better. Shot some lube up into the hammer mech and my safety lever engagement is a little less vague. I'm not quite brave enough to try and take that apart yet.
Pulled out the mag disconnect while I was in there and holy hell the trigger pull is 100% better.
After drying and reassembling I did some cycle tests with my dummy 9mm rounds and it seems to hand cycle fine. I also noticed the slide doesn't torque over when you pull the trigger if there's a loaded mag inserted (upward pressure from the mag spring).
I'm going to clean it a few more times over the next few weeks to try and shake out the rest of the Israeli sand. I'm also thinking about painting the recesses on the sights.
All-in-all I'm really happy with what I got.